Is an asteroid impact more likely than winning the lottery? What can Moon rock tell us about the Earth? And how did a biology teacher discover a new astronomical object? In this Naked Astronomy AstroFest special, we'll ask if the Kepler observatory is ushering in a new scientific revolution, meet Hanny van Arkel, who discovered Hanny's Voorwerp on citizen science project Galaxy Zoo and find out why one former MP thinks we should be concerned about being hit by an asteroid...